/**
 *  Copyright 2009-2010 Steven Ottenhoff (Dual-IT)
 * 
 *  This file is part of Clazzified.
 *
 *  Clazzified is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Clazzified is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Clazzified.  If not, see http://www.gnu.org/licenses/gpl.
 * 
 */

package nl.dualit.clazzified.core.model.attribute.constraint;

import java.util.Map;

import nl.dualit.clazzified.core.model.AbstractBuilder;
import nl.dualit.clazzified.core.model.attribute.IAttribute;
import nl.dualit.clazzified.store.clazz.ConstraintFields;

public final class ConstraintBuilder extends AbstractBuilder {
	
	
	/**
	 * Return a new instance of specified type (ConstraintTypes).
	 * 
	 * @param attribute
	 * @param type
	 * @return
	 */
	public IConstraint getNewConstraint( IAttribute attribute, ConstraintTypes type ){
		
		switch( type ){
		
		case MINLENGTH:
			return new MinLength( attribute );
		}
			
		return null;
	}
	
	
	public IConstraint getConstraint( IAttribute attribute, Map<ConstraintFields, String> data ){
		
		ConstraintTypes type = ConstraintTypes.getType( data.get( ConstraintFields.TYPE_NAME ) );
		
		IConstraint constraint = getNewConstraint( attribute, type );
		
		constraint.setId( Long.valueOf( data.get( ConstraintFields.CONSTRAINT_ID ) ) );
		constraint.setName( data.get( ConstraintFields.CONSTRAINT_NAME ) );
		constraint.setDescription( data.get( ConstraintFields.CONSTRAINT_DESCRIPTION ) );
		constraint.setValue( data.get( ConstraintFields.CONSTRAINT_VALUE ) );
		
		return constraint;
	}
	
}
